Here are a selection of PDFs for download:

General 4 Cylinder Loom Info

                 

Analogue Wibeband Lambda Installation

 

 

BMW S54 Wiring Harness Instructions

 

 

Delta 880 BMW S65/S85 Wiring Harness Instructions

 

 

DeltaDash 7.0 wiring pin out

Tacho pull resistor (for legacy ECUs + GDI4 only)

Standard relay wiring